2002-10-06 07:30:10 +08:00
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=pod
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=head1 NAME
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2015-12-11 08:36:06 +08:00
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X509_new, X509_free, X509_up_ref - X509 certificate ASN1 allocation functions
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2002-10-06 07:30:10 +08:00
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=head1 SYNOPSIS
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2006-05-14 19:28:00 +08:00
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#include <openssl/x509.h>
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2002-10-06 07:30:10 +08:00
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X509 *X509_new(void);
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void X509_free(X509 *a);
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2015-12-11 08:36:06 +08:00
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void X509_up_ref(X509 *a);
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2002-10-06 07:30:10 +08:00
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=head1 DESCRIPTION
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The X509 ASN1 allocation routines, allocate and free an
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X509 structure, which represents an X509 certificate.
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2015-12-11 08:36:06 +08:00
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X509_new() allocates and initializes a X509 structure with reference count
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B<1>.
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2002-10-06 07:30:10 +08:00
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2015-12-11 08:36:06 +08:00
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X509_free() decrements the reference count of B<X509> structure B<a> and
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frees it up if the reference count is zero. If B<a> is NULL nothing is done.
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X509_up_ref() increments the reference count of B<a>.
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=head1 NOTES
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The function X509_up_ref() if useful if a certificate structure is being
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used by several different operations each of which will free it up after
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use: this avoids the need to duplicate the entire certificate structure.
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2002-10-06 07:30:10 +08:00
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=head1 RETURN VALUES
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If the allocation fails, X509_new() returns B<NULL> and sets an error
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2015-08-18 03:21:33 +08:00
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code that can be obtained by L<ERR_get_error(3)>.
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2002-10-06 07:30:10 +08:00
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Otherwise it returns a pointer to the newly allocated structure.
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2015-12-11 08:36:06 +08:00
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X509_free() and X509_up_ref() do not return a value.
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2002-10-06 07:30:10 +08:00
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=head1 SEE ALSO
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2015-09-22 04:25:52 +08:00
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L<d2i_X509(3)>,
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L<ERR_get_error(3)>,
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L<X509_CRL_get0_by_serial(3)>,
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L<X509_get0_signature(3)>,
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L<X509_get_ext_d2i(3)>,
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L<X509_get_extension_flags(3)>,
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L<X509_get_pubkey(3)>,
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L<X509_get_subject_name(3)>,
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L<X509_get_version(3)>,
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L<X509_NAME_add_entry_by_txt(3)>,
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L<X509_NAME_ENTRY_get_object(3)>,
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L<X509_NAME_get_index_by_NID(3)>,
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L<X509_NAME_print_ex(3)>,
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L<X509_sign(3)>,
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L<X509V3_get_d2i(3)>,
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L<X509_verify_cert(3)>
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2002-10-06 07:30:10 +08:00
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=cut
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